South Dennis is a CDP located in Barnstable County, Massachusetts. South Dennis has a 2025 population of 2,966. South Dennis is currently declining at a rate of -1.49% annually but its population has increased by 2.45% since the most recent census, which recorded a population of 2,895 in 2020.
The average household income in South Dennis is $99,472 with a poverty rate of 4.52%.The median age in South Dennis is 55.2 years: 53.4 years for males, and 58.2 years for females.
Data after 2023 is projected based on recent change
The racial composition of South Dennis includes 91.47% White, 3.98% Black or African American, 3.23% other race, and smaller percentages for Two or more races, Asian and multiracial populations.
Race | Population | Percentage (of total) |
---|---|---|
White | 2,918 | 91.47% |
Black or African American | 127 | 3.98% |
Other race | 103 | 3.23% |
Two or more races | 25 | 0.78% |
Asian | 17 | 0.53% |
Married
Widowed
Divorced
Separated
Never Married
South Dennis' average per capita income is $53,338. Household income levels show a median of $86,500. The poverty rate stands at 4.52%.
Name | Median | Mean |
---|---|---|
Married Families | $118,551 | - |
Families | $113,674 | $121,907 |
Households | $86,500 | $99,472 |
Non Families | $53,586 | $64,228 |
Average Income
Median Household Income
Poverty Rate